422 letters on various topics from the period 1643-1649 between Andreä, and Rudolf August, Anton Ulrich, and Ferdinand Albrecht, Dukes of Brunswick and Lüneburg, as well as some others
Probably 1st ed. of 1649; see Hogart
Frontispiece is engraved port. of author. Engraved t.p. includes 6 cartouches with allegorical scenes. Four additional full-page engraved ports. depict Rudolf August, Anton Ulrich, Ferdinand Albrecht, and Sibylla Ursula, Duchess of Brunswick and Lüneburg. The last is signed in the plate: C. Buna. Allegorical woodcut, p. 28
Hogart, R. Alchemy
No table of contents. Foxing. Narrow margins. Gutter included to avoid cropping text. Some text is impossible to capture. Irregular pagination. Missing and misprinted page numbers.